RMLD232UAW datasheet(9/50 Pages) EMLSI

9 / 50 page

Rev 0.7

64Mb Low Power DDR SDRAM

Advanced

Internal Temperature Compensated Self Refresh (TCSR)

Note :

1. In order to save power consumption, Low Power DDR SDRAM includes the internal temperature sensor and control units to control

the self refresh cycle automatically according to the four temperature range ; Max. 15

, Max. 45

Max. 70

Max. 85

2. If the EMRS for external TCSR is issued by the controller, this EMRS code for TCSR is ignored.

Partial Array Self Refresh (PASR)

Note :

1. In order to save power consumption, Mobile DDR SDRAM includes PASR option.

2. Low Power DDR SDRAM supports three kinds of PASR in self refresh mode; Four banks, Two banks, One bank.

Temperature Range

Self Refresh Current (Icc6)

Unit

Full Array

1/2 Array

1/4 Array

Max. 15

210

160

130

Max. 45

220

170

135

Max. 70

230

180

140

Max. 85

250

190

150

BA1=0

BA0=0 BA0=1

BA1=0

BA1=0 BA1=0

BA0=0

BA1=1

BA0=0 BA0=1

- Four Bank

- Two Bank (Bank0,1)

- One Bank (Bank0)

Partial Self Refresh Area

BA1=1

BA1=0 BA1=0

BA0=0

BA0=1

BA1=1

BA0=1

BA0=0

BA0=0 BA0=1

BA1=1

BA0=1

Figure.3 EMRS code and TCSR, PASR

RMLD232UAW Datasheet(PDF) 9 Page - Emerging Memory & Logic Solutions Inc

RMLD232UAW Datasheet(HTML) 9 Page - Emerging Memory & Logic Solutions Inc

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